No it isn't reasonable. In fact it is one of the stupidest things you can do. If you read any history, you will see that failures in military, politics, science etc. (really pick anything) are often due to key people simply refusing to learn from their opponents and/or refusing to adjust to the new reality. Often this is done because they find their opponents morally repugnant, or lacking in some virtue they happen to hold as important.
It is fine if you don't like the current US Administration. However if they do something that happens to be good, it is fine to acknowledge it as such, while still pointing out what else they are doing wrong. Otherwise you just come off as a sore loser and people will stop taking any notice of you.